Questions tagged [imap]

IMAP stands for Internet Message Access Protocol and is the other e-mail protocol along with POP.

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IMAPS, SSL or TLS

Is IMAPS (IMAP over SSL) SSL or TLS? I know TLS is the successor of SSL. But everywhere I look, I always find IMAPS = IMAP over SSL with always the specific mention of SSL and never TLS, which makes ...
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Server Configuration Error if Receiving e-mails

Another Problem, I have a VPS where I installed a Dovecot, Postfix, PostfixAdmin and Roundcube webmail. I can not receive emails anymore from any external address, I get this Problem: This is the ...
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Sieve script does not assign IMAP flags

I am using Dovecot with Sieve, Thunderbird as mail client and want to assign IMAP flags to certain messages. I have a few tags defined in Thunderbird and have the following script: require "...
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I tried postfix restart, said service isn't running. Yet I am on my working mail server? (cent os)

So I am not sure what I am doing wrong. This all started with the need to let others from outside our network access the SMTP to send email from offsite. So I had in /etc/postfix a check_clients ...
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Microsof Exchange 2013 export to 3rd Party cloud hosting

So I'm trying to export mailboxes off of a local exchange 2013 server and upload them to a hosted VPS running IMAP. So basically migrating mailboxes from exchange to IMAP. I was told that I could move ...
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Copy emails to another domain on the same VPS

I'm moving my website to another domain on the same VPS. From olddomain.com to newdomain.com. I want to move all emails from hello@olddomain.com to piotr@newdomain.com I'm looking for fast and ...
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21 views

Dovecot expunge with POP3

I want to have Dovecot remove e-mails from a POP3 inbox that are over a year old, regardless of whether they have been read or not. From what I have read for autoexpunge to work the message should be ...
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26 views

Dovecot IMAP server failure

I'm trying to configure an email server. I'm using squirrelmail, dovecot and postfix. When I try to login on squirrelmail site it gicves me ERROR: Connection dropped by IMAP server. The /var/log/...
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Dovecot imap auth in large company

I manage email in large company. They have few emails, but lots of employees who read them. Every email is read from 10+ employees. At the moment, we use password auth and if someone left the ...
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1answer
71 views

Email Disappears between IMAP and POP

I have a client who has an online store, and receives order notifications by email. Their order emails are flowing into their mailbox on the server, but never show up in Outlook. Their Outlook is ...
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116 views

IMAP Server Autodiscovery

I recently got a VPS and want to start using it to host my websites instead of the Shared Hosting packages that i'm using. Question 1: Is it possible to setup Autodiscovery for the IMAP ...
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Debugging postfix/dovecot: Finding out which application is trying to connect from localhost 127.0.0.1

The problem occurs on my mail server, which apart from that works perfectly. Clients can connect via IMAP and Postfix receives and sends out emails without any hassle. Installed software: $> dpkg ...
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Retrieving Gmail Mails with Outlook - sorting labels in folders

I found a little trick on how Outlook retrieves mail from Gmail and sort the labels into sub-folders. For that I created a [Gmail] label and nested every other label underneath. It works for some ...
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109 views

Dovecot: no auth attempts - from local IP

Please note, this is not like the other question asked about the same topic (wrong SSL setup, whatever)! My mail setup works fine, IMAP / POP3 login and smtp is just working. But I have some log ...
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Collaborative Inbox account with Zimbra

I need to create a collaborative email system with Zimbra where: I have 20 users with a personal account in which they receive mail from a shared account (eg: info@contoso.com) They can each organize ...
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Strange (mail related) traffic on my server

I'm noticing strange traffic on my webserver which is around 50kbps constantly. Doing a (few seconds worth of) tcpdump on the specific ip address, I get this (pardon the huge list): 09:33:02.385238 ...
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Exchange Active Sync Connection Issue

I configured my exchange 2016 server to accept imap SSL 993 connections, however when i try to configure account A (test account with user right only) it received email with no issue, but when i setup ...
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odoo CE v12: Email configuration

I am running odoo v12 using docker-compose. Trying to configure a GSuite mailbox in such a way that mails from that mailbox are fetched via IMAP and appear in "Discuss" section of CRM. The IMAP and ...
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103 views

Exchange IMAP4 authentication failed

All of the sudden IMAP4 authentication started to fail for my e-mail account. It was working just fine for years, and yesterday I started getting authentication errors. Our organization runs Exchange ...
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24 views

Moving IMAP mailbox from a Linux server to G Suite

I have my old mailbox, which was hosted by my hosting provider. I want to move it to a new one, like G Suite. To access my old email, I used imap.mydomain.com server. I now moved my site to a new ...
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225 views

Get new mails immediately

Up to now we get new mails with the tool getmail. It works well. There is a cron job which runs every minute. Is there a way to get the mail faster? I see two ways: Solution 1: run the cron job ...
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A long time to write to Sent folder over Imap - Zimbra

It's Imap or Zimbra or Thunderbird issue as I think. I've got problem with few users using Thunderbird on Windows machines. When they send e-mail they have to wait very long time until Thunderbird ...
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320 views

IMAP/Dovecot sync drafts folder between mail clients

I don't understand how different mail clients work with the mails inside the drafts folder. Firstly the Gmail and Outlook android app doesn't sync any drafts at all despite I selected the drafts ...
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241 views

Dovecot chdir failed - not a directory

I have set up Postfix + Dovecot with SSL enforced, and while testing with mailutils I'm able to send e-mails to my gmail, but when I try to reply they are not received on my server. With openssl I ...
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78 views

Courier does not show IMAP Maildir folders

I am in the process of moving a courier IMAP server from one machine to another. Maildirs have been set up, all the messages have been copied successfully. There are a few IMAP folders that show up in ...
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62 views

Cannot connect to server over SSL/IMAP from some machines, but others work fine

Since this morning, a few of the machines in our office have been unable to fetch e-mail from our domain over IMAP. The server (Windows 2012 R2, IIS 8, MailEnable) is set up to listen on ports 143 and ...
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Using e-mail on malware infected computer/network [closed]

I have an important (+10 outlook accounts) but very ignorant client who refuses to accept that there is malware on the company's computers. Malware that steals Outlook data to send and receive spam. ...
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IMAP email not persisting read status and reply status - what could be the likely cause?

So I have the following setup: IMAP mail from TransIP (a pretty big host in the Netherlands) Thunderbird on my PC Mail on IOS phone Frequently when I'm reading emails on my PC they are being marked ...
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444 views

Courier not listening on IPv4 ports

I am having an issue with postfix/courier after a software update in which courier is no longer listening on the IPv4 ports. Here is the netstat output: ubuntu@ip-10-x-x-x:~$ sudo netstat -plnt sudo: ...
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1answer
324 views

doveadm backup doesn't transfer mail from root INBOX

I'm trying to migrate IMAP mails from dovecot 1.1.20apple0.5 (osx) to dovecot 2.2.33.2 (ubuntu). I'm using "doveadm backup" to migrate my data. It works fine for all subfolders, but the root INBOX ...
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79 views

Mail server proxy suggestions

Currently we I have a mail server for example "mail.example.com". This is a dedicated email server and we are looking to replace it. We are considering outsourcing the email management through ...
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173 views

Postfix/Dovecot failed mail delivery

I have recently started to deploy a mail server with Postfix and Dovecot on my Ubuntu 18.04. LTS. Unfortunately recieving mails does not work, and I have yet to understand why. The Setup Dovecot In ...
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301 views

Dovecot fails to authenticate for some users

I've the typical Dovecot + Postfix setup, with Apache and Roundcube (in a VPS). Yesterday I set up everything, and it went smooth. Right, but today I woke up with the surprise that some users simply ...
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1answer
53 views

Outlook as a lightweight IMAP client

Is it possible to configure Outlook (Version 1812, part of Office 365) as an IMAP client without downloading everything in Drafts, Sent, Spam, Trash? Starting from a clean profile, I add a user, and ...
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72 views

Best way to restrict/manage PHP apps to use my postfix?

I want to allow PHP apps to send mail but under very restricted conditions. And I don't want to allow sendmail-like command for PHP apps (I'm using chrooted PHP and it's too much headache), thus I ...
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2answers
412 views

Dovecot IMAP authenticating proxy using Kerberos/GSSAPI

I'm trying to set up Dovecot as authenticating reverse proxy, in front of an already running IMAP server to accomplish the following: Have Dovecot authenticate users using Kerberos/GSSAPI (to allow ...
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714 views

No package php-imap available on CentOS 6

I'm running a dedicated server with CentOS 6 64bit, here is the output when trying to install IMAP: [root@localhost ~]# yum install php-imap Loaded plugins: fastestmirror Loading mirror speeds from ...
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1answer
860 views

IMAP connections from Microsoft IP addresses when using Outlook

I run a Linux based mail server and use Dovecot to provide IMAP over TLS access. This server has been up and running for a bit more than 8 years now and it serves my email address along with those of ...
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645 views

What is right way to migrate mails from Gmail to Dovecot with doveadm-backup?

Dovecot doc is far from being perfect, thus I'm little bit confused what is right way to get mails from Gmail to local Dovecot. See: https://wiki.dovecot.org/Migration/Gmail After some struggle I ...
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106 views

SPF Outlook Web App (OWA) undeliverable email

PROBLEM: Outlook.com web app (OWA), synchronized with my local server via IMAP and SMTP(STARTTLS), returns "Undeliverable message" for all messages sent. PROPOSAL: (rejected) This returning message ...
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231 views

how to do basic IMAP setup / troubleshooting in Exchange 2013

So I've had an Exchange Server (v2013 with cu21) running on a Windows Server 2012 R2 box for several years now, without many problems. We almost exclusively use Outlook-Exchange integration and ...
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1answer
232 views

Recovering deleted plain text (emails) files from raw disk image

I'm hosting my own linux mail server for my family. Yesterday my father lost all the mails in his Inbox folder. I'm still not sure whether it's due to a terrible user error or compromised password, ...
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228 views

Postfix DDoS mitigation: how to whitelist IPs for IMAP access to a single mailbox

Does (Zimbra using) Postfix have an option to whitelist IPs or domains for IMAP logins for a specific mailbox only? This is what we would like to achieve: all IPs can open an IMAP connection on port ...
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1k views

Dovecot imap-login: confusing error? message

I am busy setting up a mailserver with postfix, dovecot and mariadb on a Debian 9 system. Receiving mail fails on port 993 as result of a time-out with this message in/var/log/dovecot.log: imap-...
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1answer
69 views

Outlook and Thunderbird connecting to IMAP server where mail has been deleted

Have a rebuilt IMAP mail server which is missing emails for a time period. I have tried to search but only found articles about migration. Question is, will outlook and thunderbird etc sync such ...
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328 views

Why isn't disk space reduced after deleting mails through IMAP with Dovecot?

I'm running an email server with OpenSMTPD and Dovecot on Linux and accessing emails using IMAP with a Thunderbird client. When I delete an email in Thunderbird, why doesn't disk space usage go down? ...
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Cyrus IMAP mailbox replication. Is it encrypted over the WAN?

Servers are both Debian 9. According to Debian package search they are version 2.5.10. I need to find out if replication as described here Cyrus Documentation: Replication is encrypted over the WAN. ...
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415 views

IMAP to Office 365 migration error

I am migrating mailboxes from an on-premise IMAP server to Office 365. Most of the accounts are migrating fine, but I'm hitting the following error on a handful of accounts. Error: ...
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2answers
279 views

Webmail via imap unix socket - good idea or not?

I'm slowly setting up an email system on a Centos 7 server. The particular software I'm using will consist of postfix, dovecot and roundcube, although my question isn't specific to them (I think). I'...
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3answers
2k views

Dovecot imap send spam to junk

I am using Ubuntu 18.04 64 bit dovecot 2.2.33.2 spamassassin 3.4.1 amavisd The goal is to run an e-mail server, which I achieved already. I can access the e-mails at the server using Thunderbird ...

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